THIS BOLTS TO 50 AND 70 HEADS (TRX90 LIFAN ZONGSHEN ALSO)
READ THE FOLLOWING CLOSE:
IT HAS A 28MM OPENING AT THE CARB END OF THE ALUMINUM,, WITH A 34 TO 35MM ID RUBBER ADAPTOR,,, AND THEN GOES DOWN TO A 25MM ID AT THE HEAD END OF THE ALUMINUM PIPE THAT BOLTS TO THE HEAD'S INTAKE PORT. 410-1083028
